The vulnerability identified as CVE-2026-23929 involves prototype pollution in the searchParamsToObject() function within Zabbix. Prototype pollution vulnerabilities allow attackers to inject properties into JavaScript object prototypes, potentially leading to unexpected behavior or security issues. The CVSS 4.0 vector indicates network attack vector, low attack complexity, low privileges required, user interaction needed, and high impact on confidentiality, integrity, and availability. Multiple specific Zabbix package versions distributed in Ubuntu LTS releases are affected. There is no information on available patches or fixes in the provided data.

Successful exploitation of this prototype pollution vulnerability could allow an attacker with low privileges and requiring user interaction to cause high impact on confidentiality, integrity, and availability of the affected system. However, no known exploits in the wild have been reported, and the vulnerability requires user interaction to be exploited.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor vendor channels for updates. Until a fix is available, consider restricting access and user interactions that might trigger the vulnerable function.